HM17CM4096 ETC2 [List of Unclassifed Manufacturers], HM17CM4096 Datasheet - Page 18

• Manufacturer Part Number: HM17CM4096
• Description: 128XRGBX162 OUTPUT LCD DRIVER IC with built-in RAM
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

(3) Read out of internal register
read (0~F
Read out is possible not only from DDRAM, but also from the internal register. Addresses for
Read out is executed after writing read-out register address to internal register.
Internal register read out sequence
When register is read out, upper 4 bit data are “1111”.
Non-used bits of active registers are “0”.
When non-used registers are read out, upper 4 bits are “1111” and lower 4 bits are “0000”.
caution) When 16 bit mode, do write in and read out by 16 bit not only RAM access but also command
BUS HOLDER
D
0
~D
DATA WRITE IN OPERATION
DATA READ OUT OPERATION
setting.
7
(D
D
H
WR
WR
WR
RD
0
~D
0
) are allocated in each register.
~D
D
WR
RD
0
15
~D
15
)
7
address set
register read
n
n
Address set
n
for
M
n
Internal register read address set
set RE of register to be read out
dummy
n+1
read
Internal register read
Internal register
RE register set:100
n+1
read
m
n address
data read
n+2
n
n+2
register read
Address set
n+1 address
for
N
data read
n+3
n+1
n+3
Internal register
HM17CM4096
n+2 address
data read
read
n
n+4
n+2
n+4
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